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back-to-back


back–to–back

adjective or adverb

: facing in opposite directions and often touching at the back

: coming one after another in time

Full Definition of BACK-TO-BACK

1
:  facing in opposite directions and often touching
2
:  coming one after the other :  consecutive
See back–to–back defined for English-language learners »

First Known Use of BACK-TO-BACK

15th century

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